GD32F103RBT6 — GigaDevice
ARM Cortex-M3 MCU, 72MHz, 128KB flash, 20KB SRAM, LQFP64

Category: MCU

Pricing
  LCSC         $1.64
  Mouser       $2.04
  DigiKey      $2.16
  Farnell      $2.15

Manufacturer: https://www.gigadevice.com